121220120201002 has 32 divisors (see below), whose sum is σ = 187318900296000. Its totient is φ = 58799627714688.

The previous prime is 121220120200979. The next prime is 121220120201003. The reversal of 121220120201002 is 200102021022121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121220120201003) 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, 216751449 + ... + 217309987.

It is an arithmetic number, because the mean of its divisors is an integer number (5853715634250).

Almost surely, 2^{121220120201002} is an apocalyptic number.

121220120201002 is a deficient number, since it is larger than the sum of its proper divisors (66098780094998).

121220120201002 is a wasteful number, since it uses less digits than its factorization.

121220120201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575670.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121220120201002 its reverse (200102021022121), we get a palindrome (321322141223123).

The spelling of 121220120201002 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty million, two hundred one thousand, two".