1220022001010 has 16 divisors (see below), whose sum is σ = 2198543653656. Its totient is φ = 487452344448.

The previous prime is 1220022001007. The next prime is 1220022001043. The reversal of 1220022001010 is 101002200221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1120873216369 + 99148784641 = 1058713^2 + 314879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220022000982 and 1220022001000.

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, 69547787 + ... + 69565326.

Almost surely, 2^{1220022001010} is an apocalyptic number.

1220022001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220022001010 is a deficient number, since it is larger than the sum of its proper divisors (978521652646).

1220022001010 is a wasteful number, since it uses less digits than its factorization.

1220022001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139113997.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220022001010 its reverse (101002200221), we get a palindrome (1321024201231).

The spelling of 1220022001010 in words is "one trillion, two hundred twenty billion, twenty-two million, one thousand, ten".