2021221120022 has 16 divisors (see below), whose sum is σ = 3265074763440. Its totient is φ = 932864068512.

The previous prime is 2021221119979. The next prime is 2021221120033. The reversal of 2021221120022 is 2200211221202.

It is a happy number.

It is a congruent 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, 4682033 + ... + 5095475.

It is an arithmetic number, because the mean of its divisors is an integer number (204067172715).

Almost surely, 2^{2021221120022} is an apocalyptic number.

2021221120022 is a deficient number, since it is larger than the sum of its proper divisors (1243853643418).

2021221120022 is a wasteful number, since it uses less digits than its factorization.

2021221120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601487.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2021221120022 its reverse (2200211221202), we get a palindrome (4221432341224).

The spelling of 2021221120022 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, twenty-two".