102212211121000 has 128 divisors (see below), whose sum is σ = 251974500336000. Its totient is φ = 38700789120000.

The previous prime is 102212211120991. The next prime is 102212211121001. The reversal of 102212211121000 is 121112212201.

It is a super-2 number, since 2×102212211121000² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102212211121001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20579371 + ... + 25058629.

It is an arithmetic number, because the mean of its divisors is an integer number (1968550783875).

Almost surely, 2^{102212211121000} is an apocalyptic number.

102212211121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102212211121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125987250168000).

102212211121000 is an abundant number, since it is smaller than the sum of its proper divisors (149762289215000).

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

102212211121000 is a wasteful number, since it uses less digits than its factorization.

102212211121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480500 (or 4480486 counting only the distinct ones).

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

Adding to 102212211121000 its reverse (121112212201), we get a palindrome (102333323333201).

The spelling of 102212211121000 in words is "one hundred two trillion, two hundred twelve billion, two hundred eleven million, one hundred twenty-one thousand".