101212232040 has 96 divisors (see below), whose sum is σ = 334515074400. Its totient is φ = 26532466560.

The previous prime is 101212232029. The next prime is 101212232111. The reversal of 101212232040 is 40232212101.

It is a happy number.

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

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, 2361346 + ... + 2403825.

It is an arithmetic number, because the mean of its divisors is an integer number (3484532025).

Almost surely, 2^101212232040 is an apocalyptic number.

101212232040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212232040 is an abundant number, since it is smaller than the sum of its proper divisors (233302842360).

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

101212232040 is a wasteful number, since it uses less digits than its factorization.

101212232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765247 (or 4765240 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 101212232040 its reverse (40232212101), we get a palindrome (141444444141).

The spelling of 101212232040 in words is "one hundred one billion, two hundred twelve million, two hundred thirty-two thousand, forty".