20221111151 has 2 divisors, whose sum is σ = 20221111152. Its totient is φ = 20221111150.

The previous prime is 20221111103. The next prime is 20221111177. The reversal of 20221111151 is 15111112202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20221111151 - 2¹⁴ = 20221094767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221111451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110555575 + 10110555576.

It is an arithmetic number, because the mean of its divisors is an integer number (10110555576).

Almost surely, 2^20221111151 is an apocalyptic number.

20221111151 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221111151 is an equidigital number, since it uses as much as digits as its factorization.

20221111151 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 17.

Adding to 20221111151 its reverse (15111112202), we get a palindrome (35332223353).

The spelling of 20221111151 in words is "twenty billion, two hundred twenty-one million, one hundred eleven thousand, one hundred fifty-one".