120121222020101 has 2 divisors, whose sum is σ = 120121222020102. Its totient is φ = 120121222020100.

The previous prime is 120121222020097. The next prime is 120121222020131. The reversal of 120121222020101 is 101020222121021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98533397107201 + 21587824912900 = 9926399^2 + 4646270^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121222020101 - 2² = 120121222020097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120121222020101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120121222020131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060611010050 + 60060611010051.

It is an arithmetic number, because the mean of its divisors is an integer number (60060611010051).

Almost surely, 2^{120121222020101} is an apocalyptic number.

It is an amenable number.

120121222020101 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121222020101 is an equidigital number, since it uses as much as digits as its factorization.

120121222020101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120121222020101 its reverse (101020222121021), we get a palindrome (221141444141122).

The spelling of 120121222020101 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twenty-two million, twenty thousand, one hundred one".