21277677223334 has 32 divisors (see below), whose sum is σ = 36519879002880. Its totient is φ = 9108040751712.

The previous prime is 21277677223331. The next prime is 21277677223351. The reversal of 21277677223334 is 43332277677212.

It is a super-2 number, since 2×21277677223334² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21277677223334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21277677223331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205194452 + ... + 205298120.

It is an arithmetic number, because the mean of its divisors is an integer number (1141246218840).

Almost surely, 2^{21277677223334} is an apocalyptic number.

21277677223334 is a deficient number, since it is larger than the sum of its proper divisors (15242201779546).

21277677223334 is a wasteful number, since it uses less digits than its factorization.

21277677223334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121164.

The product of its digits is 24893568, while the sum is 56.

The spelling of 21277677223334 in words is "twenty-one trillion, two hundred seventy-seven billion, six hundred seventy-seven million, two hundred twenty-three thousand, three hundred thirty-four".