121222120100022 has 12 divisors (see below), whose sum is σ = 262647926883420. Its totient is φ = 40407373366668.

The previous prime is 121222120099981. The next prime is 121222120100089. The reversal of 121222120100022 is 220001021222121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6734562227779 = 121222120100022 / (1 + 2 + 1 + 2 + 2 + 2 + 1 + 2 + 0 + 1 + 0 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 121222120099968 and 121222120100004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3367281113872 + ... + 3367281113907.

It is an arithmetic number, because the mean of its divisors is an integer number (21887327240285).

Almost surely, 2^{121222120100022} is an apocalyptic number.

121222120100022 is an abundant number, since it is smaller than the sum of its proper divisors (141425806783398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121222120100022 is a wasteful number, since it uses less digits than its factorization.

121222120100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6734562227787 (or 6734562227784 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121222120100022 its reverse (220001021222121), we get a palindrome (341223141322143).

The spelling of 121222120100022 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred thousand, twenty-two".