121021101222200 has 48 divisors (see below), whose sum is σ = 281539867884480. Its totient is φ = 48379914460160.

The previous prime is 121021101222173. The next prime is 121021101222239. The reversal of 121021101222200 is 2222101120121.

It is a super-2 number, since 2×121021101222200² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177947432 + ... + 178626231.

It is an arithmetic number, because the mean of its divisors is an integer number (5865413914260).

Almost surely, 2^{121021101222200} is an apocalyptic number.

121021101222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121021101222200 is an abundant number, since it is smaller than the sum of its proper divisors (160518766662280).

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

121021101222200 is a wasteful number, since it uses less digits than its factorization.

121021101222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356575376 (or 356575367 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121021101222200 its reverse (2222101120121), we get a palindrome (123243202342321).

The spelling of 121021101222200 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred one million, two hundred twenty-two thousand, two hundred".