101211182020 has 24 divisors (see below), whose sum is σ = 228892981464. Its totient is φ = 37370282496.

The previous prime is 101211182003. The next prime is 101211182027. The reversal of 101211182020 is 20281112101.

It can be written as a sum of positive squares in 4 ways, for example, as 762753924 + 100448428096 = 27618^2 + 316936^2 .

It is not an unprimeable number, because it can be changed into a prime (101211182027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194636629 + ... + 194637148.

It is an arithmetic number, because the mean of its divisors is an integer number (9537207561).

Almost surely, 2^101211182020 is an apocalyptic number.

101211182020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211182020 is an abundant number, since it is smaller than the sum of its proper divisors (127681799444).

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

101211182020 is a wasteful number, since it uses less digits than its factorization.

101211182020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389273799 (or 389273797 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 101211182020 its reverse (20281112101), we get a palindrome (121492294121).

The spelling of 101211182020 in words is "one hundred one billion, two hundred eleven million, one hundred eighty-two thousand, twenty".