211312010204420 has 48 divisors (see below), whose sum is σ = 463051515991680. Its totient is φ = 80849360503296.

The previous prime is 211312010204371. The next prime is 211312010204431. The reversal of 211312010204420 is 24402010213112.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87773111 + ... + 90148449.

It is an arithmetic number, because the mean of its divisors is an integer number (9646906583160).

Almost surely, 2^{211312010204420} is an apocalyptic number.

211312010204420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211312010204420 is an abundant number, since it is smaller than the sum of its proper divisors (251739505787260).

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

211312010204420 is a wasteful number, since it uses less digits than its factorization.

211312010204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568764 (or 2568762 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 211312010204420 its reverse (24402010213112), we get a palindrome (235714020417532).

The spelling of 211312010204420 in words is "two hundred eleven trillion, three hundred twelve billion, ten million, two hundred four thousand, four hundred twenty".