21220100102212 has 24 divisors (see below), whose sum is σ = 40912200205632. Its totient is φ = 9550000044000.

The previous prime is 21220100102197. The next prime is 21220100102231.

It is a happy number.

21220100102212 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2387495568 + ... + 2387504455.

It is an arithmetic number, because the mean of its divisors is an integer number (1704675008568).

Almost surely, 2^{21220100102212} is an apocalyptic number.

21220100102212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21220100102212 is a deficient number, since it is larger than the sum of its proper divisors (19692100103420).

21220100102212 is a wasteful number, since it uses less digits than its factorization.

21220100102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775000139 (or 4775000137 counting only the distinct ones).

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

It can be divided in two parts, 21220100 and 102212, that added together give a palindrome (21322312).

The spelling of 21220100102212 in words is "twenty-one trillion, two hundred twenty billion, one hundred million, one hundred two thousand, two hundred twelve".