212242121254444 has 6 divisors (see below), whose sum is σ = 371423712195284. Its totient is φ = 106121060627220.

The previous prime is 212242121254403. The next prime is 212242121254483. The reversal of 212242121254444 is 444452121242212.

It is a super-2 number, since 2×212242121254444² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212242121254397 and 212242121254406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26530265156802 + ... + 26530265156809.

Almost surely, 2^{212242121254444} is an apocalyptic number.

It is an amenable number.

212242121254444 is a deficient number, since it is larger than the sum of its proper divisors (159181590940840).

212242121254444 is a wasteful number, since it uses less digits than its factorization.

212242121254444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53060530313615 (or 53060530313613 counting only the distinct ones).

The product of its digits is 327680, while the sum is 40.

Adding to 212242121254444 its reverse (444452121242212), we get a palindrome (656694242496656).

The spelling of 212242121254444 in words is "two hundred twelve trillion, two hundred forty-two billion, one hundred twenty-one million, two hundred fifty-four thousand, four hundred forty-four".