212203144243402 has 16 divisors (see below), whose sum is σ = 342806107053312. Its totient is φ = 97935223440240.

The previous prime is 212203144243369. The next prime is 212203144243417. The reversal of 212203144243402 is 204342441302212.

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, 194833474 + ... + 195919597.

It is an arithmetic number, because the mean of its divisors is an integer number (21425381690832).

Almost surely, 2^{212203144243402} is an apocalyptic number.

212203144243402 is a deficient number, since it is larger than the sum of its proper divisors (130602962809910).

212203144243402 is a wasteful number, since it uses less digits than its factorization.

212203144243402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390773973.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 212203144243402 its reverse (204342441302212), we get a palindrome (416545585545614).

The spelling of 212203144243402 in words is "two hundred twelve trillion, two hundred three billion, one hundred forty-four million, two hundred forty-three thousand, four hundred two".