221010100122 has 64 divisors (see below), whose sum is σ = 510584396544. Its totient is φ = 62470517760.

The previous prime is 221010100099. The next prime is 221010100211. The reversal of 221010100122 is 221001010122.

It is a super-3 number, since 3×221010100122³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221010100098 and 221010100107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2524548 + ... + 2610624.

It is an arithmetic number, because the mean of its divisors is an integer number (7977881196).

Almost surely, 2^221010100122 is an apocalyptic number.

221010100122 is an abundant number, since it is smaller than the sum of its proper divisors (289574296422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221010100122 is a wasteful number, since it uses less digits than its factorization.

221010100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86743.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221010100122 its reverse (221001010122), we get a palindrome (442011110244).

The spelling of 221010100122 in words is "two hundred twenty-one billion, ten million, one hundred thousand, one hundred twenty-two".