213103230121220 has 24 divisors (see below), whose sum is σ = 447591531590784. Its totient is φ = 85227054270176.

The previous prime is 213103230121219. The next prime is 213103230121231. The reversal of 213103230121220 is 22121032301312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889738412 + ... + 889977891.

It is an arithmetic number, because the mean of its divisors is an integer number (18649647149616).

Almost surely, 2^{213103230121220} is an apocalyptic number.

213103230121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213103230121220 is an abundant number, since it is smaller than the sum of its proper divisors (234488301469564).

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

213103230121220 is a wasteful number, since it uses less digits than its factorization.

213103230121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779722299 (or 1779722297 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213103230121220 its reverse (22121032301312), we get a palindrome (235224262422532).

The spelling of 213103230121220 in words is "two hundred thirteen trillion, one hundred three billion, two hundred thirty million, one hundred twenty-one thousand, two hundred twenty".