121210202022201 has 16 divisors (see below), whose sum is σ = 180022988745600. Its totient is φ = 80603257760784.

The previous prime is 121210202022191. The next prime is 121210202022227. The reversal of 121210202022201 is 102220202012121.

It is a happy number.

121210202022201 is a `hidden beast` number, since 1 + 212 + 10 + 20 + 202 + 220 + 1 = 666.

It is not a de Polignac number, because 121210202022201 - 2¹⁴ = 121210202005817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121210202022401) 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, 5653977621 + ... + 5653999058.

It is an arithmetic number, because the mean of its divisors is an integer number (11251436796600).

Almost surely, 2^{121210202022201} is an apocalyptic number.

It is an amenable number.

121210202022201 is a deficient number, since it is larger than the sum of its proper divisors (58812786723399).

121210202022201 is a wasteful number, since it uses less digits than its factorization.

121210202022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11307977085 (or 11307977079 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121210202022201 its reverse (102220202012121), we get a palindrome (223430404034322).

It can be divided in two parts, 12121020 and 2022201, that added together give a triangular number (14143221 = T₅₃₁₈).

The spelling of 121210202022201 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred two million, twenty-two thousand, two hundred one".