221010100201012 has 6 divisors (see below), whose sum is σ = 386767675351778. Its totient is φ = 110505050100504.

The previous prime is 221010100200991. The next prime is 221010100201049. The reversal of 221010100201012 is 210102001010122.

It can be written as a sum of positive squares in only one way, i.e., 170965143732496 + 50044956468516 = 13075364^2 + 7074246^2 .

It is a super-2 number, since 2×221010100201012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221010100200983 and 221010100201001.

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, 27626262525123 + ... + 27626262525130.

Almost surely, 2^{221010100201012} is an apocalyptic number.

It is an amenable number.

221010100201012 is a deficient number, since it is larger than the sum of its proper divisors (165757575150766).

221010100201012 is a wasteful number, since it uses less digits than its factorization.

221010100201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55252525050257 (or 55252525050255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221010100201012 its reverse (210102001010122), we get a palindrome (431112101211134).

The spelling of 221010100201012 in words is "two hundred twenty-one trillion, ten billion, one hundred million, two hundred one thousand, twelve".