20201102120 has 32 divisors (see below), whose sum is σ = 45589828320. Its totient is φ = 8056023360.

The previous prime is 20201102111. The next prime is 20201102143. The reversal of 20201102120 is 2120110202.

It is a happy number.

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, 749642 + ... + 776121.

It is an arithmetic number, because the mean of its divisors is an integer number (1424682135).

Almost surely, 2^20201102120 is an apocalyptic number.

20201102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201102120 is an abundant number, since it is smaller than the sum of its proper divisors (25388726200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201102120 is a wasteful number, since it uses less digits than its factorization.

20201102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526105 (or 1526101 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20201102120 its reverse (2120110202), we get a palindrome (22321212322).

The spelling of 20201102120 in words is "twenty billion, two hundred one million, one hundred two thousand, one hundred twenty".