1001211022020 has 48 divisors (see below), whose sum is σ = 3058244578368. Its totient is φ = 242717823360.

The previous prime is 1001211021989. The next prime is 1001211022073. The reversal of 1001211022020 is 202201121001.

1001211022020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1001211022020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1001211021987 and 1001211022005.

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, 758492539 + ... + 758493858.

It is an arithmetic number, because the mean of its divisors is an integer number (63713428716).

Almost surely, 2^{1001211022020} is an apocalyptic number.

1001211022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001211022020 is an abundant number, since it is smaller than the sum of its proper divisors (2057033556348).

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

1001211022020 is a wasteful number, since it uses less digits than its factorization.

1001211022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516986420 (or 1516986418 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1001211022020 its reverse (202201121001), we get a palindrome (1203412143021).

The spelling of 1001211022020 in words is "one trillion, one billion, two hundred eleven million, twenty-two thousand, twenty".