121012111121000 has 64 divisors (see below), whose sum is σ = 308910916416960. Its totient is φ = 44004404040000.

The previous prime is 121012111120933. The next prime is 121012111121021. The reversal of 121012111121000 is 121111210121.

It is a super-2 number, since 2×121012111121000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5500539506 + ... + 5500561505.

It is an arithmetic number, because the mean of its divisors is an integer number (4826733069015).

Almost surely, 2^{121012111121000} is an apocalyptic number.

121012111121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012111121000 is an abundant number, since it is smaller than the sum of its proper divisors (187898805295960).

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

121012111121000 is a wasteful number, since it uses less digits than its factorization.

121012111121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001101043 (or 11001101029 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121012111121000 its reverse (121111210121), we get a palindrome (121133222331121).

The spelling of 121012111121000 in words is "one hundred twenty-one trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand".