20120102200202 has 4 divisors (see below), whose sum is σ = 30180153300306. Its totient is φ = 10060051100100.

The previous prime is 20120102200153. The next prime is 20120102200223. The reversal of 20120102200202 is 20200220102102.

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., 18222405850441 + 1897696349761 = 4268771^2 + 1377569^2 .

It is a super-2 number, since 2×20120102200202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030025550049 + ... + 5030025550052.

Almost surely, 2^{20120102200202} is an apocalyptic number.

20120102200202 is a deficient number, since it is larger than the sum of its proper divisors (10060051100104).

20120102200202 is a wasteful number, since it uses less digits than its factorization.

20120102200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060051100103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20120102200202 its reverse (20200220102102), we get a palindrome (40320322302304).

The spelling of 20120102200202 in words is "twenty trillion, one hundred twenty billion, one hundred two million, two hundred thousand, two hundred two".