121022101202121 has 40 divisors (see below), whose sum is σ = 206741741589504. Its totient is φ = 69112290700800.

The previous prime is 121022101202117. The next prime is 121022101202179. The reversal of 121022101202121 is 121202101220121.

121022101202121 is a `hidden beast` number, since 1 + 210 + 2 + 210 + 120 + 2 + 121 = 666.

It is not a de Polignac number, because 121022101202121 - 2² = 121022101202117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121022101202094 and 121022101202103.

It is not an unprimeable number, because it can be changed into a prime (121022101202111) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 65751465 + ... + 67566998.

Almost surely, 2^{121022101202121} is an apocalyptic number.

It is an amenable number.

121022101202121 is a deficient number, since it is larger than the sum of its proper divisors (85719640387383).

121022101202121 is a wasteful number, since it uses less digits than its factorization.

121022101202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133320083 (or 133320074 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121022101202121 its reverse (121202101220121), we get a palindrome (242224202422242).

The spelling of 121022101202121 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred one million, two hundred two thousand, one hundred twenty-one".