2101232210121 has 192 divisors, whose sum is σ = 3682850146560. Its totient is φ = 1143647631360.

The previous prime is 2101232210113. The next prime is 2101232210137. The reversal of 2101232210121 is 1210122321012.

2101232210121 is a `hidden beast` number, since 2 + 101 + 232 + 210 + 121 = 666.

It is not a de Polignac number, because 2101232210121 - 2³ = 2101232210113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2101232210094 and 2101232210103.

It is not an unprimeable number, because it can be changed into a prime (2101232210111) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 953803806 + ... + 953806008.

It is an arithmetic number, because the mean of its divisors is an integer number (19181511180).

Almost surely, 2^{2101232210121} is an apocalyptic number.

It is an amenable number.

2101232210121 is a deficient number, since it is larger than the sum of its proper divisors (1581617936439).

2101232210121 is a wasteful number, since it uses less digits than its factorization.

2101232210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2101232210121 its reverse (1210122321012), we get a palindrome (3311354531133).

The spelling of 2101232210121 in words is "two trillion, one hundred one billion, two hundred thirty-two million, two hundred ten thousand, one hundred twenty-one".