151101204221 has 16 divisors (see below), whose sum is σ = 173771327040. Its totient is φ = 129941521920.

The previous prime is 151101204187. The next prime is 151101204263. The reversal of 151101204221 is 122402101151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151101204221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151101204193 and 151101204202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151101204281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396470 + ... + 677783.

It is an arithmetic number, because the mean of its divisors is an integer number (10860707940).

Almost surely, 2^151101204221 is an apocalyptic number.

151101204221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

151101204221 is a deficient number, since it is larger than the sum of its proper divisors (22670122819).

151101204221 is a wasteful number, since it uses less digits than its factorization.

151101204221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074956.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 151101204221 its reverse (122402101151), we get a palindrome (273503305372).

The spelling of 151101204221 in words is "one hundred fifty-one billion, one hundred one million, two hundred four thousand, two hundred twenty-one".