20012211001204 has 6 divisors (see below), whose sum is σ = 35021369252114. Its totient is φ = 10006105500600.

The previous prime is 20012211001187. The next prime is 20012211001219. The reversal of 20012211001204 is 40210011221002.

It can be written as a sum of positive squares in only one way, i.e., 14520443724900 + 5491767276304 = 3810570^2 + 2343452^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501526375147 + ... + 2501526375154.

Almost surely, 2^{20012211001204} is an apocalyptic number.

It is an amenable number.

20012211001204 is a deficient number, since it is larger than the sum of its proper divisors (15009158250910).

20012211001204 is a wasteful number, since it uses less digits than its factorization.

20012211001204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003052750305 (or 5003052750303 counting only the distinct ones).

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

Adding to 20012211001204 its reverse (40210011221002), we get a palindrome (60222222222206).

The spelling of 20012211001204 in words is "twenty trillion, twelve billion, two hundred eleven million, one thousand, two hundred four".