2012212542 has 32 divisors (see below), whose sum is σ = 4160194560. Its totient is φ = 648171360.

The previous prime is 2012212519. The next prime is 2012212547. The reversal of 2012212542 is 2452122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012212547) 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, 128959 + ... + 143717.

It is an arithmetic number, because the mean of its divisors is an integer number (130006080).

Almost surely, 2^2012212542 is an apocalyptic number.

2012212542 is an abundant number, since it is smaller than the sum of its proper divisors (2147982018).

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

2012212542 is a wasteful number, since it uses less digits than its factorization.

2012212542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15528.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2012212542 is about 44857.6921162915. The cubic root of 2012212542 is about 1262.4803208644.

Adding to 2012212542 its reverse (2452122102), we get a palindrome (4464334644).

The spelling of 2012212542 in words is "two billion, twelve million, two hundred twelve thousand, five hundred forty-two".