211011202121064 has 32 divisors (see below), whose sum is σ = 527537147089920. Its totient is φ = 70335848468736.

The previous prime is 211011202121051. The next prime is 211011202121149. The reversal of 211011202121064 is 460121202110112.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 74767249 + ... + 77538144.

It is an arithmetic number, because the mean of its divisors is an integer number (16485535846560).

Almost surely, 2^{211011202121064} is an apocalyptic number.

211011202121064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211011202121064 is an abundant number, since it is smaller than the sum of its proper divisors (316525944968856).

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

211011202121064 is a wasteful number, since it uses less digits than its factorization.

211011202121064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152363129 (or 152363125 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 211011202121064 its reverse (460121202110112), we get a palindrome (671132404231176).

The spelling of 211011202121064 in words is "two hundred eleven trillion, eleven billion, two hundred two million, one hundred twenty-one thousand, sixty-four".