120221011121001 has 32 divisors (see below), whose sum is σ = 183423724942080. Its totient is φ = 68611587093504.

The previous prime is 120221011120981. The next prime is 120221011121023. The reversal of 120221011121001 is 100121110122021.

It is a happy number.

It is not a de Polignac number, because 120221011121001 - 2¹⁸ = 120221010858857 is a prime.

It is a super-2 number, since 2×120221011121001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120221011121041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66893365 + ... + 68667053.

It is an arithmetic number, because the mean of its divisors is an integer number (5731991404440).

Almost surely, 2^{120221011121001} is an apocalyptic number.

It is an amenable number.

120221011121001 is a deficient number, since it is larger than the sum of its proper divisors (63202713821079).

120221011121001 is a wasteful number, since it uses less digits than its factorization.

120221011121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777745.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120221011121001 its reverse (100121110122021), we get a palindrome (220342121243022).

The spelling of 120221011121001 in words is "one hundred twenty trillion, two hundred twenty-one billion, eleven million, one hundred twenty-one thousand, one".