1220020120102 has 12 divisors (see below), whose sum is σ = 2128810617900. Its totient is φ = 522865765716.

The previous prime is 1220020120091. The next prime is 1220020120169. The reversal of 1220020120102 is 2010210200221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6224592352 + ... + 6224592547.

It is an arithmetic number, because the mean of its divisors is an integer number (177400884825).

Almost surely, 2^{1220020120102} is an apocalyptic number.

1220020120102 is a deficient number, since it is larger than the sum of its proper divisors (908790497798).

1220020120102 is a wasteful number, since it uses less digits than its factorization.

1220020120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12449184915 (or 12449184908 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1220020120102 its reverse (2010210200221), we get a palindrome (3230230320323).

The spelling of 1220020120102 in words is "one trillion, two hundred twenty billion, twenty million, one hundred twenty thousand, one hundred two".