90212181370 has 16 divisors (see below), whose sum is σ = 162391301280. Its totient is φ = 36082789264.

The previous prime is 90212181347. The next prime is 90212181373. The reversal of 90212181370 is 7318121209.

It is not an unprimeable number, because it can be changed into a prime (90212181373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72052 + ... + 430831.

It is an arithmetic number, because the mean of its divisors is an integer number (10149456330).

Almost surely, 2^90212181370 is an apocalyptic number.

90212181370 is a deficient number, since it is larger than the sum of its proper divisors (72179119910).

90212181370 is a wasteful number, since it uses less digits than its factorization.

90212181370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520829.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 90212181370 in words is "ninety billion, two hundred twelve million, one hundred eighty-one thousand, three hundred seventy".