1021122201201 has 16 divisors (see below), whose sum is σ = 1374235705920. Its totient is φ = 674380676160.

The previous prime is 1021122201139. The next prime is 1021122201259. The reversal of 1021122201201 is 1021022211201.

It is a de Polignac number, because none of the positive numbers 2^k-1021122201201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021122201101) 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, 1545226 + ... + 2104748.

It is an arithmetic number, because the mean of its divisors is an integer number (85889731620).

Almost surely, 2^{1021122201201} is an apocalyptic number.

It is an amenable number.

1021122201201 is a deficient number, since it is larger than the sum of its proper divisors (353113504719).

1021122201201 is a wasteful number, since it uses less digits than its factorization.

1021122201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565216.

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

Adding to 1021122201201 its reverse (1021022211201), we get a palindrome (2042144412402).

The spelling of 1021122201201 in words is "one trillion, twenty-one billion, one hundred twenty-two million, two hundred one thousand, two hundred one".