221060661610260 has 48 divisors (see below), whose sum is σ = 621323350091136. Its totient is φ = 58725367135872.

The previous prime is 221060661610181. The next prime is 221060661610279. The reversal of 221060661610260 is 62016166060122.

It is a super-2 number, since 2×221060661610260² (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 in 15 ways as a sum of consecutive naturals, for example, 7004441179 + ... + 7004472738.

It is an arithmetic number, because the mean of its divisors is an integer number (12944236460232).

Almost surely, 2^{221060661610260} is an apocalyptic number.

221060661610260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221060661610260 is an abundant number, since it is smaller than the sum of its proper divisors (400262688480876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221060661610260 is a wasteful number, since it uses less digits than its factorization.

221060661610260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008914192 (or 14008914190 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 221060661610260 in words is "two hundred twenty-one trillion, sixty billion, six hundred sixty-one million, six hundred ten thousand, two hundred sixty".