5901220121202 has 72 divisors (see below), whose sum is σ = 14881182173676. Its totient is φ = 1685190153024.

The previous prime is 5901220121201. The next prime is 5901220121213. The reversal of 5901220121202 is 2021210221095.

It is a happy number.

5901220121202 is a `hidden beast` number, since 590 + 12 + 20 + 1 + 21 + 20 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5763355688601 + 137864432601 = 2400699^2 + 371301^2 .

It is not an unprimeable number, because it can be changed into a prime (5901220121201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25753 + ... + 3435564.

Almost surely, 2^{5901220121202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5901220121202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7440591086838).

5901220121202 is an abundant number, since it is smaller than the sum of its proper divisors (8979962052474).

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

5901220121202 is a wasteful number, since it uses less digits than its factorization.

5901220121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463272 (or 3463262 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 5901220121202 its reverse (2021210221095), we get a palindrome (7922430342297).

The spelling of 5901220121202 in words is "five trillion, nine hundred one billion, two hundred twenty million, one hundred twenty-one thousand, two hundred two".