10101022020 has 72 divisors (see below), whose sum is σ = 31628163840. Its totient is φ = 2606713920.

The previous prime is 10101022007. The next prime is 10101022021. The reversal of 10101022020 is 2022010101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10101021993 and 10101022011.

It is not an unprimeable number, because it can be changed into a prime (10101022021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 899530 + ... + 910689.

Almost surely, 2^10101022020 is an apocalyptic number.

10101022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101022020 is an abundant number, since it is smaller than the sum of its proper divisors (21527141820).

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

10101022020 is a wasteful number, since it uses less digits than its factorization.

10101022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810265 (or 1810260 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10101022020 its reverse (2022010101), we get a palindrome (12123032121).

The spelling of 10101022020 in words is "ten billion, one hundred one million, twenty-two thousand, twenty".