1220001001310 has 64 divisors (see below), whose sum is σ = 2789957689344. Its totient is φ = 373655030400.

The previous prime is 1220001001283. The next prime is 1220001001321. The reversal of 1220001001310 is 131001000221.

It is a super-2 number, since 2×1220001001310² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220001001291 and 1220001001300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21595346 + ... + 21651765.

It is an arithmetic number, because the mean of its divisors is an integer number (43593088896).

Almost surely, 2^{1220001001310} is an apocalyptic number.

1220001001310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220001001310 is an abundant number, since it is smaller than the sum of its proper divisors (1569956688034).

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

1220001001310 is a wasteful number, since it uses less digits than its factorization.

1220001001310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43247169.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1220001001310 its reverse (131001000221), we get a palindrome (1351002001531).

The spelling of 1220001001310 in words is "one trillion, two hundred twenty billion, one million, one thousand, three hundred ten".