100022212221 has 32 divisors (see below), whose sum is σ = 144219411840. Its totient is φ = 61446138624.

The previous prime is 100022212207. The next prime is 100022212253. The reversal of 100022212221 is 122212220001.

It is not a de Polignac number, because 100022212221 - 2²⁹ = 99485341309 is a prime.

It is a super-5 number, since 5×100022212221⁵ (a number of 56 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a self number, because there is not a number n which added to its sum of digits gives 100022212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022216221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11242851 + ... + 11251743.

It is an arithmetic number, because the mean of its divisors is an integer number (4506856620).

Almost surely, 2^100022212221 is an apocalyptic number.

It is an amenable number.

100022212221 is a deficient number, since it is larger than the sum of its proper divisors (44197199619).

100022212221 is a wasteful number, since it uses less digits than its factorization.

100022212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14285.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100022212221 its reverse (122212220001), we get a palindrome (222234432222).

The spelling of 100022212221 in words is "one hundred billion, twenty-two million, two hundred twelve thousand, two hundred twenty-one".