121210220022101 has 16 divisors (see below), whose sum is σ = 138630212765184. Its totient is φ = 103816296586224.

The previous prime is 121210220022083. The next prime is 121210220022113. The reversal of 121210220022101 is 101220022012121.

It is a cyclic number.

It is not a de Polignac number, because 121210220022101 - 2³⁴ = 121193040152917 is a prime.

It is a super-2 number, since 2×121210220022101² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121210220022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210220022401) 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, 199106486 + ... + 199714328.

It is an arithmetic number, because the mean of its divisors is an integer number (8664388297824).

Almost surely, 2^{121210220022101} is an apocalyptic number.

It is an amenable number.

121210220022101 is a deficient number, since it is larger than the sum of its proper divisors (17419992743083).

121210220022101 is a wasteful number, since it uses less digits than its factorization.

121210220022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629240.

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

Adding to 121210220022101 its reverse (101220022012121), we get a palindrome (222430242034222).

The spelling of 121210220022101 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty million, twenty-two thousand, one hundred one".