121020112222200 has 192 divisors, whose sum is σ = 427014055288800. Its totient is φ = 31484907187200.

The previous prime is 121020112222153. The next prime is 121020112222267. The reversal of 121020112222200 is 2222211020121.

It is a happy number.

121020112222200 is a `hidden beast` number, since 1 + 21 + 0 + 201 + 1 + 222 + 220 + 0 = 666.

It is a super-3 number, since 3×121020112222200³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 273085087 + ... + 273527886.

Almost surely, 2^{121020112222200} is an apocalyptic number.

121020112222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020112222200 is an abundant number, since it is smaller than the sum of its proper divisors (305993943066600).

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

121020112222200 is a wasteful number, since it uses less digits than its factorization.

121020112222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546613039 (or 546613024 counting only the distinct ones).

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

Adding to 121020112222200 its reverse (2222211020121), we get a palindrome (123242323242321).

The spelling of 121020112222200 in words is "one hundred twenty-one trillion, twenty billion, one hundred twelve million, two hundred twenty-two thousand, two hundred".