2001102012202 has 4 divisors (see below), whose sum is σ = 3001653018306. Its totient is φ = 1000551006100.

The previous prime is 2001102012197. The next prime is 2001102012209. The reversal of 2001102012202 is 2022102011002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1292271041961 + 708830970241 = 1136781^2 + 841921^2 .

It is not an unprimeable number, because it can be changed into a prime (2001102012209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500275503049 + ... + 500275503052.

Almost surely, 2^{2001102012202} is an apocalyptic number.

2001102012202 is a deficient number, since it is larger than the sum of its proper divisors (1000551006104).

2001102012202 is a wasteful number, since it uses less digits than its factorization.

2001102012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000551006103.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001102012202 its reverse (2022102011002), we get a palindrome (4023204023204).

The spelling of 2001102012202 in words is "two trillion, one billion, one hundred two million, twelve thousand, two hundred two".