10101111109980 has 96 divisors (see below), whose sum is σ = 30856276926720. Its totient is φ = 2448597550080.

The previous prime is 10101111109963. The next prime is 10101111109981. The reversal of 10101111109980 is 8990111110101.

It is a super-2 number, since 2×10101111109980² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101111109981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10005127 + ... + 10968353.

It is an arithmetic number, because the mean of its divisors is an integer number (321419551320).

Almost surely, 2^{10101111109980} is an apocalyptic number.

10101111109980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101111109980 is an abundant number, since it is smaller than the sum of its proper divisors (20755165816740).

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

10101111109980 is a wasteful number, since it uses less digits than its factorization.

10101111109980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979139 (or 979137 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 33.

The spelling of 10101111109980 in words is "ten trillion, one hundred one billion, one hundred eleven million, one hundred nine thousand, nine hundred eighty".