10221021201210 has 64 divisors (see below), whose sum is σ = 25512417279360. Its totient is φ = 2618576513280.

The previous prime is 10221021201203. The next prime is 10221021201229. The reversal of 10221021201210 is 1210212012201.

It is a super-2 number, since 2×10221021201210² (a number of 27 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10221021201210.

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, 64866165 + ... + 65023544.

It is an arithmetic number, because the mean of its divisors is an integer number (398631519990).

Almost surely, 2^{10221021201210} is an apocalyptic number.

10221021201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221021201210 is an abundant number, since it is smaller than the sum of its proper divisors (15291396078150).

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

10221021201210 is a wasteful number, since it uses less digits than its factorization.

10221021201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129889823.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10221021201210 its reverse (1210212012201), we get a palindrome (11431233213411).

The spelling of 10221021201210 in words is "ten trillion, two hundred twenty-one billion, twenty-one million, two hundred one thousand, two hundred ten".