121122100022025 has 24 divisors (see below), whose sum is σ = 204033605477760. Its totient is φ = 63379614600640.

The previous prime is 121122100022023. The next prime is 121122100022089. The reversal of 121122100022025 is 520220001221121.

It is not a de Polignac number, because 121122100022025 - 2¹ = 121122100022023 is a prime.

It is a super-2 number, since 2×121122100022025² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121122100021992 and 121122100022010.

It is not an unprimeable number, because it can be changed into a prime (121122100022023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15235480305 + ... + 15235488254.

It is an arithmetic number, because the mean of its divisors is an integer number (8501400228240).

Almost surely, 2^{121122100022025} is an apocalyptic number.

121122100022025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121122100022025 is a deficient number, since it is larger than the sum of its proper divisors (82911505455735).

121122100022025 is a wasteful number, since it uses less digits than its factorization.

121122100022025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30470968625 (or 30470968620 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 121122100022025 its reverse (520220001221121), we get a palindrome (641342101243146).

The spelling of 121122100022025 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred million, twenty-two thousand, twenty-five".