102101212222 has 4 divisors (see below), whose sum is σ = 153151818336. Its totient is φ = 51050606110.

The previous prime is 102101212219. The next prime is 102101212261. The reversal of 102101212222 is 222212101201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222212101201 = 10639 ⋅20886559.

It is a junction number, because it is equal to n+sod(n) for n = 102101212196 and 102101212205.

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, 25525303054 + ... + 25525303057.

It is an arithmetic number, because the mean of its divisors is an integer number (38287954584).

Almost surely, 2^102101212222 is an apocalyptic number.

102101212222 is a deficient number, since it is larger than the sum of its proper divisors (51050606114).

102101212222 is an equidigital number, since it uses as much as digits as its factorization.

102101212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51050606113.

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

Adding to 102101212222 its reverse (222212101201), we get a palindrome (324313313423).

The spelling of 102101212222 in words is "one hundred two billion, one hundred one million, two hundred twelve thousand, two hundred twenty-two".