101211302020 has 24 divisors (see below), whose sum is σ = 212563675800. Its totient is φ = 40480722432.

The previous prime is 101211301927. The next prime is 101211302021. The reversal of 101211302020 is 20203112101.

It can be written as a sum of positive squares in 4 ways, for example, as 5072858176 + 96138443844 = 71224^2 + 310062^2 .

It is not an unprimeable number, because it can be changed into a prime (101211302021) 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, 13765 + ... + 450124.

It is an arithmetic number, because the mean of its divisors is an integer number (8856819825).

Almost surely, 2^101211302020 is an apocalyptic number.

101211302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211302020 is an abundant number, since it is smaller than the sum of its proper divisors (111352373780).

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

101211302020 is a wasteful number, since it uses less digits than its factorization.

101211302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474807 (or 474805 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101211302020 its reverse (20203112101), we get a palindrome (121414414121).

The spelling of 101211302020 in words is "one hundred one billion, two hundred eleven million, three hundred two thousand, twenty".