20530212150 has 96 divisors (see below), whose sum is σ = 60195075840. Its totient is φ = 4530798720.

The previous prime is 20530212133. The next prime is 20530212167. The reversal of 20530212150 is 5121203502.

It is an interprime number because it is at equal distance from previous prime (20530212133) and next prime (20530212167).

It is a super-2 number, since 2×20530212150² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 306664 + ... + 367563.

It is an arithmetic number, because the mean of its divisors is an integer number (627032040).

Almost surely, 2^20530212150 is an apocalyptic number.

20530212150 is an abundant number, since it is smaller than the sum of its proper divisors (39664863690).

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

20530212150 is a wasteful number, since it uses less digits than its factorization.

20530212150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674278 (or 674273 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20530212150 its reverse (5121203502), we get a palindrome (25651415652).

The spelling of 20530212150 in words is "twenty billion, five hundred thirty million, two hundred twelve thousand, one hundred fifty".