221657273635214 has 64 divisors (see below), whose sum is σ = 354544628815872. Its totient is φ = 103759836364800.

The previous prime is 221657273635201. The next prime is 221657273635223. The reversal of 221657273635214 is 412536372756122.

It is a super-2 number, since 2×221657273635214² (a number of 29 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 221657273635214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1506395054 + ... + 1506542190.

It is an arithmetic number, because the mean of its divisors is an integer number (5539759825248).

Almost surely, 2^{221657273635214} is an apocalyptic number.

221657273635214 is a deficient number, since it is larger than the sum of its proper divisors (132887355180658).

221657273635214 is a wasteful number, since it uses less digits than its factorization.

221657273635214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152601.

The product of its digits is 25401600, while the sum is 56.

The spelling of 221657273635214 in words is "two hundred twenty-one trillion, six hundred fifty-seven billion, two hundred seventy-three million, six hundred thirty-five thousand, two hundred fourteen".