1021001222201 has 16 divisors (see below), whose sum is σ = 1066441541760. Its totient is φ = 975648854400.

The previous prime is 1021001222107. The next prime is 1021001222221. The reversal of 1021001222201 is 1022221001201.

1021001222201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021001222201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021001222221) 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, 152362151 + ... + 152368851.

It is an arithmetic number, because the mean of its divisors is an integer number (66652596360).

Almost surely, 2^{1021001222201} is an apocalyptic number.

It is an amenable number.

1021001222201 is a deficient number, since it is larger than the sum of its proper divisors (45440319559).

1021001222201 is a wasteful number, since it uses less digits than its factorization.

1021001222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021001222201 its reverse (1022221001201), we get a palindrome (2043222223402).

The spelling of 1021001222201 in words is "one trillion, twenty-one billion, one million, two hundred twenty-two thousand, two hundred one".