12021000020022 has 32 divisors (see below), whose sum is σ = 27476894126592. Its totient is φ = 3434531102784.

The previous prime is 12021000019949. The next prime is 12021000020137. The reversal of 12021000020022 is 22002000012021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2035423 + ... + 5308949.

It is an arithmetic number, because the mean of its divisors is an integer number (858652941456).

Almost surely, 2^{12021000020022} is an apocalyptic number.

12021000020022 is an abundant number, since it is smaller than the sum of its proper divisors (15455894106570).

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

12021000020022 is a wasteful number, since it uses less digits than its factorization.

12021000020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360972.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12021000020022 its reverse (22002000012021), we get a palindrome (34023000032043).

The spelling of 12021000020022 in words is "twelve trillion, twenty-one billion, twenty thousand, twenty-two".