121153253012 has 24 divisors (see below), whose sum is σ = 238753627392. Its totient is φ = 53293219200.

The previous prime is 121153253003. The next prime is 121153253021. The reversal of 121153253012 is 210352351121.

It is an interprime number because it is at equal distance from previous prime (121153253003) and next prime (121153253021).

It is a super-2 number, since 2×121153253012² (a number of 23 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 7 ways as a sum of consecutive naturals, for example, 44409653 + ... + 44412380.

It is an arithmetic number, because the mean of its divisors is an integer number (9948067808).

Almost surely, 2^121153253012 is an apocalyptic number.

It is an amenable number.

121153253012 is a deficient number, since it is larger than the sum of its proper divisors (117600374380).

121153253012 is a wasteful number, since it uses less digits than its factorization.

121153253012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88822079 (or 88822077 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 121153253012 in words is "one hundred twenty-one billion, one hundred fifty-three million, two hundred fifty-three thousand, twelve".