20100202211212 has 6 divisors (see below), whose sum is σ = 35175353869628. Its totient is φ = 10050101105604.

The previous prime is 20100202211197. The next prime is 20100202211251. The reversal of 20100202211212 is 21211220200102.

It is a happy number.

It is a super-2 number, since 2×20100202211212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512525276398 + ... + 2512525276405.

Almost surely, 2^{20100202211212} is an apocalyptic number.

It is an amenable number.

20100202211212 is a deficient number, since it is larger than the sum of its proper divisors (15075151658416).

20100202211212 is a wasteful number, since it uses less digits than its factorization.

20100202211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025050552807 (or 5025050552805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20100202211212 its reverse (21211220200102), we get a palindrome (41311422411314).

The spelling of 20100202211212 in words is "twenty trillion, one hundred billion, two hundred two million, two hundred eleven thousand, two hundred twelve".