1022121220101 has 16 divisors (see below), whose sum is σ = 1446111316224. Its totient is φ = 639945782784.

The previous prime is 1022121220097. The next prime is 1022121220111. The reversal of 1022121220101 is 1010221212201.

1022121220101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1022121220101 - 2² = 1022121220097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121220111) 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, 21619576 + ... + 21666801.

It is an arithmetic number, because the mean of its divisors is an integer number (90381957264).

Almost surely, 2^{1022121220101} is an apocalyptic number.

It is an amenable number.

1022121220101 is a deficient number, since it is larger than the sum of its proper divisors (423990096123).

1022121220101 is a wasteful number, since it uses less digits than its factorization.

1022121220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43286860.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1022121220101 its reverse (1010221212201), we get a palindrome (2032342432302).

The spelling of 1022121220101 in words is "one trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty thousand, one hundred one".