21220102012202 has 32 divisors (see below), whose sum is σ = 32269658428800. Its totient is φ = 10464808780800.

The previous prime is 21220102012201. The next prime is 21220102012211. The reversal of 21220102012202 is 20221020102212.

It is a happy number.

It is a super-3 number, since 3×21220102012202³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21220102012201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24412049 + ... + 25266347.

It is an arithmetic number, because the mean of its divisors is an integer number (1008426825900).

Almost surely, 2^{21220102012202} is an apocalyptic number.

21220102012202 is a deficient number, since it is larger than the sum of its proper divisors (11049556416598).

21220102012202 is a wasteful number, since it uses less digits than its factorization.

21220102012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855038.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21220102012202 its reverse (20221020102212), we get a palindrome (41441122114414).

The spelling of 21220102012202 in words is "twenty-one trillion, two hundred twenty billion, one hundred two million, twelve thousand, two hundred two".