1220440023122 has 8 divisors (see below), whose sum is σ = 1830695411196. Its totient is φ = 610208219392.

The previous prime is 1220440023079. The next prime is 1220440023157. The reversal of 1220440023122 is 2213200440221.

It can be written as a sum of positive squares in 2 ways, for example, as 1180632191761 + 39807831361 = 1086569^2 + 199519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5766143 + ... + 5974050.

Almost surely, 2^{1220440023122} is an apocalyptic number.

1220440023122 is a deficient number, since it is larger than the sum of its proper divisors (610255388074).

1220440023122 is a wasteful number, since it uses less digits than its factorization.

1220440023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792172.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1220440023122 its reverse (2213200440221), we get a palindrome (3433640463343).

The spelling of 1220440023122 in words is "one trillion, two hundred twenty billion, four hundred forty million, twenty-three thousand, one hundred twenty-two".