211211210200146 has 32 divisors (see below), whose sum is σ = 469591177026048. Its totient is φ = 62891675493120.

The previous prime is 211211210200127. The next prime is 211211210200147. The reversal of 211211210200146 is 641002012112112.

It is a super-2 number, since 2×211211210200146² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211210200147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43674772231 + ... + 43674777066.

It is an arithmetic number, because the mean of its divisors is an integer number (14674724282064).

Almost surely, 2^{211211210200146} is an apocalyptic number.

211211210200146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

211211210200146 is an abundant number, since it is smaller than the sum of its proper divisors (258379966825902).

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

211211210200146 is a wasteful number, since it uses less digits than its factorization.

211211210200146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87349549346.

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

Adding to 211211210200146 its reverse (641002012112112), we get a palindrome (852213222312258).

The spelling of 211211210200146 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred ten million, two hundred thousand, one hundred forty-six".