1210120202028 has 24 divisors (see below), whose sum is σ = 2825565202432. Its totient is φ = 403094629584.

The previous prime is 1210120202017. The next prime is 1210120202029. The reversal of 1210120202028 is 8202020210121.

It is a junction number, because it is equal to n+sod(n) for n = 1210120201995 and 1210120202013.

It is not an unprimeable number, because it can be changed into a prime (1210120202029) 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, 34828300 + ... + 34863027.

Almost surely, 2^{1210120202028} is an apocalyptic number.

It is an amenable number.

1210120202028 is an abundant number, since it is smaller than the sum of its proper divisors (1615445000404).

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

1210120202028 is a wasteful number, since it uses less digits than its factorization.

1210120202028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69692781 (or 69692779 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1210120202028 its reverse (8202020210121), we get a palindrome (9412140412149).

The spelling of 1210120202028 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred two thousand, twenty-eight".