10021221101210 has 32 divisors (see below), whose sum is σ = 20533600870272. Its totient is φ = 3485642121280.

The previous prime is 10021221101197. The next prime is 10021221101257. The reversal of 10021221101210 is 1210112212001.

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, 1980475949 + ... + 1980481008.

It is an arithmetic number, because the mean of its divisors is an integer number (641675027196).

Almost surely, 2^{10021221101210} is an apocalyptic number.

10021221101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021221101210 is an abundant number, since it is smaller than the sum of its proper divisors (10512379769062).

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

10021221101210 is a wasteful number, since it uses less digits than its factorization.

10021221101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960956998.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10021221101210 its reverse (1210112212001), we get a palindrome (11231333313211).

The spelling of 10021221101210 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, one hundred one thousand, two hundred ten".