120211201000121 has 72 divisors (see below), whose sum is σ = 160422638971392. Its totient is φ = 89579373206400.

The previous prime is 120211201000073. The next prime is 120211201000153. The reversal of 120211201000121 is 121000102112021.

It is a de Polignac number, because none of the positive numbers 2^k-120211201000121 is a prime.

It is a super-2 number, since 2×120211201000121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120211201000096 and 120211201000105.

It is not an unprimeable number, because it can be changed into a prime (120211201000021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 658697741 + ... + 658880213.

It is an arithmetic number, because the mean of its divisors is an integer number (2228092207936).

Almost surely, 2^{120211201000121} is an apocalyptic number.

120211201000121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120211201000121 is a deficient number, since it is larger than the sum of its proper divisors (40211437971271).

120211201000121 is a wasteful number, since it uses less digits than its factorization.

120211201000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187363 (or 187345 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120211201000121 its reverse (121000102112021), we get a palindrome (241211303112142).

The spelling of 120211201000121 in words is "one hundred twenty trillion, two hundred eleven billion, two hundred one million, one hundred twenty-one", and thus it is an aban number.