210012211101210 has 128 divisors (see below), whose sum is σ = 579563031674880. Its totient is φ = 47708854369536.

The previous prime is 210012211101179. The next prime is 210012211101221. The reversal of 210012211101210 is 12101112210012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210012211101210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104470351 + ... + 106461629.

It is an arithmetic number, because the mean of its divisors is an integer number (4527836184960).

Almost surely, 2^{210012211101210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210012211101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289781515837440).

210012211101210 is an abundant number, since it is smaller than the sum of its proper divisors (369550820573670).

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

210012211101210 is a wasteful number, since it uses less digits than its factorization.

210012211101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994372.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210012211101210 its reverse (12101112210012), we get a palindrome (222113323311222).

The spelling of 210012211101210 in words is "two hundred ten trillion, twelve billion, two hundred eleven million, one hundred one thousand, two hundred ten".