20011120210 has 16 divisors (see below), whose sum is σ = 36029748096. Its totient is φ = 8002285488.

The previous prime is 20011120193. The next prime is 20011120229. The reversal of 20011120210 is 1202111002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231192 + ... + 305731.

It is an arithmetic number, because the mean of its divisors is an integer number (2251859256).

Almost surely, 2^20011120210 is an apocalyptic number.

20011120210 is a deficient number, since it is larger than the sum of its proper divisors (16018627886).

20011120210 is a wasteful number, since it uses less digits than its factorization.

20011120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540657.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20011120210 its reverse (1202111002), we get a palindrome (21213231212).

It can be divided in two parts, 2001 and 1120210, that added together give a palindrome (1122211).

The spelling of 20011120210 in words is "twenty billion, eleven million, one hundred twenty thousand, two hundred ten".