212400430211442 has 32 divisors (see below), whose sum is σ = 463419672664320. Its totient is φ = 64363690035920.

The previous prime is 212400430211401. The next prime is 212400430211483. The reversal of 212400430211442 is 244112034004212.

It is an interprime number because it is at equal distance from previous prime (212400430211401) and next prime (212400430211483).

It is a super-2 number, since 2×212400430211442² (a number of 29 digits) contains 22 as substring.

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, 80577409 + ... + 83171627.

It is an arithmetic number, because the mean of its divisors is an integer number (14481864770760).

Almost surely, 2^{212400430211442} is an apocalyptic number.

212400430211442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212400430211442 is an abundant number, since it is smaller than the sum of its proper divisors (251019242452878).

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

212400430211442 is a wasteful number, since it uses less digits than its factorization.

212400430211442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834758.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 212400430211442 its reverse (244112034004212), we get a palindrome (456512464215654).

The spelling of 212400430211442 in words is "two hundred twelve trillion, four hundred billion, four hundred thirty million, two hundred eleven thousand, four hundred forty-two".