211420201242 has 32 divisors (see below), whose sum is σ = 447743970432. Its totient is φ = 66323372544.

The previous prime is 211420201229. The next prime is 211420201261. The reversal of 211420201242 is 242102024112.

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, 1627278 + ... + 1752390.

It is an arithmetic number, because the mean of its divisors is an integer number (13991999076).

Almost surely, 2^211420201242 is an apocalyptic number.

211420201242 is an abundant number, since it is smaller than the sum of its proper divisors (236323769190).

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

211420201242 is a wasteful number, since it uses less digits than its factorization.

211420201242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141702.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 211420201242 its reverse (242102024112), we get a palindrome (453522225354).

The spelling of 211420201242 in words is "two hundred eleven billion, four hundred twenty million, two hundred one thousand, two hundred forty-two".