101221102000 has 40 divisors (see below), whose sum is σ = 244752629472. Its totient is φ = 40488440000.

The previous prime is 101221101997. The next prime is 101221102033. The reversal of 101221102000 is 201122101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×101221102000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25303276 + ... + 25307275.

Almost surely, 2^101221102000 is an apocalyptic number.

101221102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101221102000 is an abundant number, since it is smaller than the sum of its proper divisors (143531527472).

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

101221102000 is an equidigital number, since it uses as much as digits as its factorization.

101221102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50610574 (or 50610558 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101221102000 its reverse (201122101), we get a palindrome (101422224101).

The spelling of 101221102000 in words is "one hundred one billion, two hundred twenty-one million, one hundred two thousand".