1012021222020 has 48 divisors (see below), whose sum is σ = 2838570540288. Its totient is φ = 269404600320.

The previous prime is 1012021221977. The next prime is 1012021222039. The reversal of 1012021222020 is 202221202101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14581516 + ... + 14650755.

It is an arithmetic number, because the mean of its divisors is an integer number (59136886256).

Almost surely, 2^{1012021222020} is an apocalyptic number.

1012021222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012021222020 is an abundant number, since it is smaller than the sum of its proper divisors (1826549318268).

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

1012021222020 is a wasteful number, since it uses less digits than its factorization.

1012021222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29232860 (or 29232858 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1012021222020 its reverse (202221202101), we get a palindrome (1214242424121).

The spelling of 1012021222020 in words is "one trillion, twelve billion, twenty-one million, two hundred twenty-two thousand, twenty".