101221020151 has 2 divisors, whose sum is σ = 101221020152. Its totient is φ = 101221020150.

The previous prime is 101221020127. The next prime is 101221020163. The reversal of 101221020151 is 151020122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101221020151 - 2⁷ = 101221020023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101221020751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610510075 + 50610510076.

It is an arithmetic number, because the mean of its divisors is an integer number (50610510076).

Almost surely, 2^101221020151 is an apocalyptic number.

101221020151 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221020151 is an equidigital number, since it uses as much as digits as its factorization.

101221020151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 101221020151 its reverse (151020122101), we get a palindrome (252241142252).

The spelling of 101221020151 in words is "one hundred one billion, two hundred twenty-one million, twenty thousand, one hundred fifty-one".