202111121030 has 64 divisors (see below), whose sum is σ = 448343779968. Its totient is φ = 63880565760.

The previous prime is 202111121021. The next prime is 202111121063. The reversal of 202111121030 is 30121111202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 202111120996 and 202111121014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546584 + ... + 838436.

It is an arithmetic number, because the mean of its divisors is an integer number (7005371562).

Almost surely, 2^202111121030 is an apocalyptic number.

202111121030 is an abundant number, since it is smaller than the sum of its proper divisors (246232658938).

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

202111121030 is a wasteful number, since it uses less digits than its factorization.

202111121030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292641.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 202111121030 its reverse (30121111202), we get a palindrome (232232232232).

The spelling of 202111121030 in words is "two hundred two billion, one hundred eleven million, one hundred twenty-one thousand, thirty".