151221701204 has 24 divisors (see below), whose sum is σ = 302525153280. Its totient is φ = 64791782496.

The previous prime is 151221701201. The next prime is 151221701231. The reversal of 151221701204 is 402107122151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151221701201) 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, 624212 + ... + 831915.

It is an arithmetic number, because the mean of its divisors is an integer number (12605214720).

Almost surely, 2^151221701204 is an apocalyptic number.

151221701204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

151221701204 is an abundant number, since it is smaller than the sum of its proper divisors (151303452076).

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

151221701204 is a wasteful number, since it uses less digits than its factorization.

151221701204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459847 (or 1459845 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

Adding to 151221701204 its reverse (402107122151), we get a palindrome (553328823355).

The spelling of 151221701204 in words is "one hundred fifty-one billion, two hundred twenty-one million, seven hundred one thousand, two hundred four".