21122022220102 has 16 divisors (see below), whose sum is σ = 32281991722080. Its totient is φ = 10361372699392.

The previous prime is 21122022220099. The next prime is 21122022220111. The reversal of 21122022220102 is 20102222022112.

It is a super-2 number, since 2×21122022220102² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122022220102.

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, 634978 + ... + 6530485.

It is an arithmetic number, because the mean of its divisors is an integer number (2017624482630).

Almost surely, 2^{21122022220102} is an apocalyptic number.

21122022220102 is a deficient number, since it is larger than the sum of its proper divisors (11159969501978).

21122022220102 is a wasteful number, since it uses less digits than its factorization.

21122022220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193327.

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

Adding to 21122022220102 its reverse (20102222022112), we get a palindrome (41224244242214).

The spelling of 21122022220102 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-two million, two hundred twenty thousand, one hundred two".