211215146610 has 64 divisors (see below), whose sum is σ = 545990118912. Its totient is φ = 51983782656.

The previous prime is 211215146603. The next prime is 211215146641. The reversal of 211215146610 is 16641512112.

It is a super-2 number, since 2×211215146610² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2895607 + ... + 2967653.

It is an arithmetic number, because the mean of its divisors is an integer number (8531095608).

Almost surely, 2^211215146610 is an apocalyptic number.

211215146610 is an abundant number, since it is smaller than the sum of its proper divisors (334774972302).

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

211215146610 is a wasteful number, since it uses less digits than its factorization.

211215146610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79587.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 211215146610 its reverse (16641512112), we get a palindrome (227856658722).

The spelling of 211215146610 in words is "two hundred eleven billion, two hundred fifteen million, one hundred forty-six thousand, six hundred ten".