20202232210989 has 16 divisors (see below), whose sum is σ = 26990727413760. Its totient is φ = 13440965640560.

The previous prime is 20202232210987. The next prime is 20202232210997. The reversal of 20202232210989 is 98901223220202.

It is a cyclic number.

It is not a de Polignac number, because 20202232210989 - 2¹ = 20202232210987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20202232210989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202232210987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632232 + ... + 6562670.

It is an arithmetic number, because the mean of its divisors is an integer number (1686920463360).

Almost surely, 2^{20202232210989} is an apocalyptic number.

It is an amenable number.

20202232210989 is a deficient number, since it is larger than the sum of its proper divisors (6788495202771).

20202232210989 is a wasteful number, since it uses less digits than its factorization.

20202232210989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4933200.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 20202232210989 in words is "twenty trillion, two hundred two billion, two hundred thirty-two million, two hundred ten thousand, nine hundred eighty-nine".