121220220001022 has 16 divisors (see below), whose sum is σ = 183536255935872. Its totient is φ = 60041508621720.

The previous prime is 121220220000991. The next prime is 121220220001063. The reversal of 121220220001022 is 220100022022121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4156004 + ... + 16115607.

It is an arithmetic number, because the mean of its divisors is an integer number (11471015995992).

Almost surely, 2^{121220220001022} is an apocalyptic number.

121220220001022 is a deficient number, since it is larger than the sum of its proper divisors (62316035934850).

121220220001022 is a wasteful number, since it uses less digits than its factorization.

121220220001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20299663.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121220220001022 its reverse (220100022022121), we get a palindrome (341320242023143).

The spelling of 121220220001022 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred twenty million, one thousand, twenty-two".