202021212322130 has 32 divisors (see below), whose sum is σ = 370988711710704. Its totient is φ = 79179062167296.

The previous prime is 202021212322099. The next prime is 202021212322169. The reversal of 202021212322130 is 31223212120202.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 113167192932049 + 88854019390081 = 10638007^2 + 9426241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202021212322096 and 202021212322105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251363717 + ... + 252166136.

Almost surely, 2^{202021212322130} is an apocalyptic number.

202021212322130 is a deficient number, since it is larger than the sum of its proper divisors (168967499388574).

202021212322130 is a wasteful number, since it uses less digits than its factorization.

202021212322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503530670.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 202021212322130 its reverse (31223212120202), we get a palindrome (233244424442332).

The spelling of 202021212322130 in words is "two hundred two trillion, twenty-one billion, two hundred twelve million, three hundred twenty-two thousand, one hundred thirty".