22121121012002 has 8 divisors (see below), whose sum is σ = 33183470054316. Its totient is φ = 11059964327232.

The previous prime is 22121121011981. The next prime is 22121121012037. The reversal of 22121121012002 is 20021012112122.

It can be written as a sum of positive squares in 2 ways, for example, as 20676218446321 + 1444902565681 = 4547111^2 + 1202041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298043003 + ... + 298117214.

Almost surely, 2^{22121121012002} is an apocalyptic number.

22121121012002 is a deficient number, since it is larger than the sum of its proper divisors (11062349042314).

22121121012002 is a wasteful number, since it uses less digits than its factorization.

22121121012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596178772.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22121121012002 its reverse (20021012112122), we get a palindrome (42142133124124).

The spelling of 22121121012002 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, twelve thousand, two".