21220122002010 has 32 divisors (see below), whose sum is σ = 51038766358272. Its totient is φ = 5646424361280.

The previous prime is 21220122001993. The next prime is 21220122002033. The reversal of 21220122002010 is 1020022102212.

It is a super-4 number, since 4×21220122002010⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767163394 + ... + 767191053.

It is an arithmetic number, because the mean of its divisors is an integer number (1594961448696).

Almost surely, 2^{21220122002010} is an apocalyptic number.

21220122002010 is an abundant number, since it is smaller than the sum of its proper divisors (29818644356262).

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

21220122002010 is a wasteful number, since it uses less digits than its factorization.

21220122002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534354918.

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

Adding to 21220122002010 its reverse (1020022102212), we get a palindrome (22240144104222).

The spelling of 21220122002010 in words is "twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, two thousand, ten".