1020220120102 has 16 divisors (see below), whose sum is σ = 1562920500672. Its totient is φ = 499247038080.

The previous prime is 1020220120081. The next prime is 1020220120103. The reversal of 1020220120102 is 2010210220201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220120103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8968702 + ... + 9081742.

It is an arithmetic number, because the mean of its divisors is an integer number (97682531292).

Almost surely, 2^{1020220120102} is an apocalyptic number.

1020220120102 is a deficient number, since it is larger than the sum of its proper divisors (542700380570).

1020220120102 is a wasteful number, since it uses less digits than its factorization.

1020220120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209103.

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

Adding to 1020220120102 its reverse (2010210220201), we get a palindrome (3030430340303).

The spelling of 1020220120102 in words is "one trillion, twenty billion, two hundred twenty million, one hundred twenty thousand, one hundred two".