121132201122021 has 16 divisors (see below), whose sum is σ = 171010438372224. Its totient is φ = 76004397425664.

The previous prime is 121132201122019. The next prime is 121132201122041. The reversal of 121132201122021 is 120221102231121.

It is not a de Polignac number, because 121132201122021 - 2¹ = 121132201122019 is a prime.

It is a super-2 number, since 2×121132201122021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132201122011) 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, 39121896 + ... + 42104478.

It is an arithmetic number, because the mean of its divisors is an integer number (10688152398264).

Almost surely, 2^{121132201122021} is an apocalyptic number.

It is an amenable number.

121132201122021 is a deficient number, since it is larger than the sum of its proper divisors (49878237250203).

121132201122021 is a wasteful number, since it uses less digits than its factorization.

121132201122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778940.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121132201122021 its reverse (120221102231121), we get a palindrome (241353303353142).

The spelling of 121132201122021 in words is "one hundred twenty-one trillion, one hundred thirty-two billion, two hundred one million, one hundred twenty-two thousand, twenty-one".