1020021211012 has 24 divisors (see below), whose sum is σ = 1787209583040. Its totient is φ = 509390048160.

The previous prime is 1020021211007. The next prime is 1020021211051. The reversal of 1020021211012 is 2101121200201.

It is a junction number, because it is equal to n+sod(n) for n = 1020021210983 and 1020021211001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41934678 + ... + 41958994.

It is an arithmetic number, because the mean of its divisors is an integer number (74467065960).

Almost surely, 2^{1020021211012} is an apocalyptic number.

It is an amenable number.

1020021211012 is a deficient number, since it is larger than the sum of its proper divisors (767188372028).

1020021211012 is a wasteful number, since it uses less digits than its factorization.

1020021211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36651 (or 36649 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020021211012 its reverse (2101121200201), we get a palindrome (3121142411213).

The spelling of 1020021211012 in words is "one trillion, twenty billion, twenty-one million, two hundred eleven thousand, twelve".