2150400404212 has 6 divisors (see below), whose sum is σ = 3763200707378. Its totient is φ = 1075200202104.

The previous prime is 2150400404197. The next prime is 2150400404213. The reversal of 2150400404212 is 2124040040512.

It can be written as a sum of positive squares in only one way, i.e., 2145422255076 + 4978149136 = 1464726^2 + 70556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150400404213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268800050523 + ... + 268800050530.

Almost surely, 2^{2150400404212} is an apocalyptic number.

It is an amenable number.

2150400404212 is a deficient number, since it is larger than the sum of its proper divisors (1612800303166).

2150400404212 is a wasteful number, since it uses less digits than its factorization.

2150400404212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537600101057 (or 537600101055 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 2150400404212 its reverse (2124040040512), we get a palindrome (4274440444724).

The spelling of 2150400404212 in words is "two trillion, one hundred fifty billion, four hundred million, four hundred four thousand, two hundred twelve".