220912810077 has 16 divisors (see below), whose sum is σ = 312662521152. Its totient is φ = 138262798080.

The previous prime is 220912810003. The next prime is 220912810109. The reversal of 220912810077 is 770018219022.

It is not a de Polignac number, because 220912810077 - 2¹⁴ = 220912793693 is a prime.

It is a super-2 number, since 2×220912810077² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220912810177) 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, 5435199 + ... + 5475692.

It is an arithmetic number, because the mean of its divisors is an integer number (19541407572).

Almost surely, 2^220912810077 is an apocalyptic number.

It is an amenable number.

220912810077 is a deficient number, since it is larger than the sum of its proper divisors (91749711075).

220912810077 is a wasteful number, since it uses less digits than its factorization.

220912810077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10911308.

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 220912810077 in words is "two hundred twenty billion, nine hundred twelve million, eight hundred ten thousand, seventy-seven".