212146420535 has 16 divisors (see below), whose sum is σ = 291091219776. Its totient is φ = 145398052608.

The previous prime is 212146420531. The next prime is 212146420543. The reversal of 212146420535 is 535024641212.

It is a cyclic number.

It is not a de Polignac number, because 212146420535 - 2² = 212146420531 is a prime.

It is a super-2 number, since 2×212146420535² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 212146420495 and 212146420504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212146420531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467014 + ... + 1605123.

It is an arithmetic number, because the mean of its divisors is an integer number (18193201236).

Almost surely, 2^212146420535 is an apocalyptic number.

212146420535 is a deficient number, since it is larger than the sum of its proper divisors (78944799241).

212146420535 is a wasteful number, since it uses less digits than its factorization.

212146420535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074122.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 212146420535 in words is "two hundred twelve billion, one hundred forty-six million, four hundred twenty thousand, five hundred thirty-five".