121021202088 has 64 divisors (see below), whose sum is σ = 353863176000. Its totient is φ = 38217220416.

The previous prime is 121021202087. The next prime is 121021202089. The reversal of 121021202088 is 880202120121.

It is an interprime number because it is at equal distance from previous prime (121021202087) and next prime (121021202089).

It is a super-2 number, since 2×121021202088² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (121021202087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14740195 + ... + 14748402.

It is an arithmetic number, because the mean of its divisors is an integer number (5529112125).

Almost surely, 2^121021202088 is an apocalyptic number.

121021202088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121021202088 is an abundant number, since it is smaller than the sum of its proper divisors (232841973912).

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

121021202088 is a wasteful number, since it uses less digits than its factorization.

121021202088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29488631 (or 29488621 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The spelling of 121021202088 in words is "one hundred twenty-one billion, twenty-one million, two hundred two thousand, eighty-eight".