1012121021002 has 32 divisors (see below), whose sum is σ = 1868657075712. Its totient is φ = 400372533504.

The previous prime is 1012121020997. The next prime is 1012121021011. The reversal of 1012121021002 is 2001201212101.

It is a super-2 number, since 2×1012121021002² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 2636383 + ... + 2995789.

It is an arithmetic number, because the mean of its divisors is an integer number (58395533616).

Almost surely, 2^{1012121021002} is an apocalyptic number.

1012121021002 is a deficient number, since it is larger than the sum of its proper divisors (856536054710).

1012121021002 is a wasteful number, since it uses less digits than its factorization.

1012121021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374902.

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

Adding to 1012121021002 its reverse (2001201212101), we get a palindrome (3013322233103).

The spelling of 1012121021002 in words is "one trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, two".