1001012221202 has 64 divisors (see below), whose sum is σ = 1759159296000. Its totient is φ = 418292206272.

The previous prime is 1001012221177. The next prime is 1001012221211. The reversal of 1001012221202 is 2021222101001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394253249 + ... + 394255787.

It is an arithmetic number, because the mean of its divisors is an integer number (27486864000).

Almost surely, 2^{1001012221202} is an apocalyptic number.

1001012221202 is a deficient number, since it is larger than the sum of its proper divisors (758147074798).

1001012221202 is a wasteful number, since it uses less digits than its factorization.

1001012221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1001012221202 its reverse (2021222101001), we get a palindrome (3022234322203).

The spelling of 1001012221202 in words is "one trillion, one billion, twelve million, two hundred twenty-one thousand, two hundred two".