101221212102010 has 192 divisors, whose sum is σ = 249106350810240. Its totient is φ = 29109927329280.

The previous prime is 101221212102001. The next prime is 101221212102041. The reversal of 101221212102010 is 10201212122101.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 161478817 + ... + 162104443.

It is an arithmetic number, because the mean of its divisors is an integer number (1297428910470).

Almost surely, 2^{101221212102010} is an apocalyptic number.

101221212102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221212102010 is an abundant number, since it is smaller than the sum of its proper divisors (147885138708230).

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

101221212102010 is a wasteful number, since it uses less digits than its factorization.

101221212102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627981 (or 627974 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101221212102010 its reverse (10201212122101), we get a palindrome (111422424224111).

The spelling of 101221212102010 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred twelve million, one hundred two thousand, ten".