2157210101150 has 48 divisors (see below), whose sum is σ = 4346035210944. Its totient is φ = 791904209280.

The previous prime is 2157210101149. The next prime is 2157210101227. The reversal of 2157210101150 is 511010127512.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9479414 + ... + 9704313.

It is an arithmetic number, because the mean of its divisors is an integer number (90542400228).

Almost surely, 2^{2157210101150} is an apocalyptic number.

2157210101150 is an abundant number, since it is smaller than the sum of its proper divisors (2188825109794).

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

2157210101150 is a wasteful number, since it uses less digits than its factorization.

2157210101150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19183925 (or 19183920 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 26.

Adding to 2157210101150 its reverse (511010127512), we get a palindrome (2668220228662).

The spelling of 2157210101150 in words is "two trillion, one hundred fifty-seven billion, two hundred ten million, one hundred one thousand, one hundred fifty".