2021211020122 has 16 divisors (see below), whose sum is σ = 3472935342912. Its totient is φ = 864232752960.

The previous prime is 2021211020117. The next prime is 2021211020203. The reversal of 2021211020122 is 2210201121202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021211020096 and 2021211020105.

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, 166705504 + ... + 166717627.

It is an arithmetic number, because the mean of its divisors is an integer number (217058458932).

Almost surely, 2^{2021211020122} is an apocalyptic number.

2021211020122 is a deficient number, since it is larger than the sum of its proper divisors (1451724322790).

2021211020122 is a wasteful number, since it uses less digits than its factorization.

2021211020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333423573.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021211020122 its reverse (2210201121202), we get a palindrome (4231412141324).

The spelling of 2021211020122 in words is "two trillion, twenty-one billion, two hundred eleven million, twenty thousand, one hundred twenty-two".