1011211110988 has 24 divisors (see below), whose sum is σ = 1907845256912. Its totient is φ = 466198231104.

The previous prime is 1011211110911. The next prime is 1011211110997. The reversal of 1011211110988 is 8890111121101.

It is a super-2 number, since 2×1011211110988² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10672995 + ... + 10767322.

Almost surely, 2^{1011211110988} is an apocalyptic number.

It is an amenable number.

1011211110988 is a deficient number, since it is larger than the sum of its proper divisors (896634145924).

1011211110988 is a wasteful number, since it uses less digits than its factorization.

1011211110988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21441241 (or 21441239 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 34.

The spelling of 1011211110988 in words is "one trillion, eleven billion, two hundred eleven million, one hundred ten thousand, nine hundred eighty-eight".