2021110210156 has 12 divisors (see below), whose sum is σ = 3536954018640. Its totient is φ = 1010551919120.

The previous prime is 2021110210117. The next prime is 2021110210157. The reversal of 2021110210156 is 6510120111202.

It is not an unprimeable number, because it can be changed into a prime (2021110210157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170726 + ... + 2326546.

It is an arithmetic number, because the mean of its divisors is an integer number (294746168220).

Almost surely, 2^{2021110210156} is an apocalyptic number.

It is an amenable number.

2021110210156 is a deficient number, since it is larger than the sum of its proper divisors (1515843808484).

2021110210156 is a wasteful number, since it uses less digits than its factorization.

2021110210156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592984 (or 1592982 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 2021110210156 its reverse (6510120111202), we get a palindrome (8531230321358).

The spelling of 2021110210156 in words is "two trillion, twenty-one billion, one hundred ten million, two hundred ten thousand, one hundred fifty-six".