21022211020002 has 64 divisors (see below), whose sum is σ = 42462936198144. Its totient is φ = 6938019728640.

The previous prime is 21022211019989. The next prime is 21022211020049. The reversal of 21022211020002 is 20002011222012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 800497552 + ... + 800523812.

It is an arithmetic number, because the mean of its divisors is an integer number (663483378096).

Almost surely, 2^{21022211020002} is an apocalyptic number.

21022211020002 is an abundant number, since it is smaller than the sum of its proper divisors (21440725178142).

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

21022211020002 is a wasteful number, since it uses less digits than its factorization.

21022211020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29723.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21022211020002 its reverse (20002011222012), we get a palindrome (41024222242014).

The spelling of 21022211020002 in words is "twenty-one trillion, twenty-two billion, two hundred eleven million, twenty thousand, two".