101220766 has 16 divisors (see below), whose sum is σ = 157795200. Its totient is φ = 48644640.

The previous prime is 101220727. The next prime is 101220799. The reversal of 101220766 is 667022101.

It is a self number, because there is not a number n which added to its sum of digits gives 101220766.

It is a congruent number.

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, 3760 + ... + 14716.

It is an arithmetic number, because the mean of its divisors is an integer number (9862200).

Almost surely, 2^101220766 is an apocalyptic number.

101220766 is a deficient number, since it is larger than the sum of its proper divisors (56574434).

101220766 is a wasteful number, since it uses less digits than its factorization.

101220766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11139.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 101220766 is about 10060.8531447388. The cubic root of 101220766 is about 466.0400138788.

Adding to 101220766 its reverse (667022101), we get a palindrome (768242867).

The spelling of 101220766 in words is "one hundred one million, two hundred twenty thousand, seven hundred sixty-six".