102211122021212 has 6 divisors (see below), whose sum is σ = 178869463537128. Its totient is φ = 51105561010604.

The previous prime is 102211122021133. The next prime is 102211122021227. The reversal of 102211122021212 is 212120221112201.

It is a super-2 number, since 2×102211122021212² (a number of 29 digits) contains 22 as substring.

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, 12776390252648 + ... + 12776390252655.

It is an arithmetic number, because the mean of its divisors is an integer number (29811577256188).

Almost surely, 2^{102211122021212} is an apocalyptic number.

It is an amenable number.

102211122021212 is a deficient number, since it is larger than the sum of its proper divisors (76658341515916).

102211122021212 is a wasteful number, since it uses less digits than its factorization.

102211122021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25552780505307 (or 25552780505305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102211122021212 its reverse (212120221112201), we get a palindrome (314331343133413).

The spelling of 102211122021212 in words is "one hundred two trillion, two hundred eleven billion, one hundred twenty-two million, twenty-one thousand, two hundred twelve".