1201102211988 has 72 divisors (see below), whose sum is σ = 3472789756800. Its totient is φ = 342881398080.

The previous prime is 1201102211977. The next prime is 1201102211993. The reversal of 1201102211988 is 8891122011021.

It is a happy number.

It is a super-3 number, since 3×1201102211988³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1720288 + ... + 2315511.

Almost surely, 2^{1201102211988} is an apocalyptic number.

1201102211988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1201102211988 is an abundant number, since it is smaller than the sum of its proper divisors (2271687544812).

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

1201102211988 is a wasteful number, since it uses less digits than its factorization.

1201102211988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036997 (or 4036992 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 36.

The spelling of 1201102211988 in words is "one trillion, two hundred one billion, one hundred two million, two hundred eleven thousand, nine hundred eighty-eight".