1220822736870 has 32 divisors (see below), whose sum is σ = 3196335893760. Its totient is φ = 295957027040.

The previous prime is 1220822736851. The next prime is 1220822736871. The reversal of 1220822736870 is 786372280221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220822736871) 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, 1849731090 + ... + 1849731749.

It is an arithmetic number, because the mean of its divisors is an integer number (99885496680).

Almost surely, 2^{1220822736870} is an apocalyptic number.

1220822736870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220822736870 is an abundant number, since it is smaller than the sum of its proper divisors (1975513156890).

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

1220822736870 is a wasteful number, since it uses less digits than its factorization.

1220822736870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699462860.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 1220822736870 in words is "one trillion, two hundred twenty billion, eight hundred twenty-two million, seven hundred thirty-six thousand, eight hundred seventy".