21220022112202 has 16 divisors (see below), whose sum is σ = 32241857362560. Its totient is φ = 10472810594688.

The previous prime is 21220022112193. The next prime is 21220022112269. The reversal of 21220022112202 is 20221122002212.

It is a super-3 number, since 3×21220022112202³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21220022112202.

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, 17994168 + ... + 19137139.

It is an arithmetic number, because the mean of its divisors is an integer number (2015116085160).

Almost surely, 2^{21220022112202} is an apocalyptic number.

21220022112202 is a deficient number, since it is larger than the sum of its proper divisors (11021835250358).

21220022112202 is a wasteful number, since it uses less digits than its factorization.

21220022112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37135005.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21220022112202 its reverse (20221122002212), we get a palindrome (41441144114414).

The spelling of 21220022112202 in words is "twenty-one trillion, two hundred twenty billion, twenty-two million, one hundred twelve thousand, two hundred two".