1102201212021 has 128 divisors (see below), whose sum is σ = 2019024838656. Its totient is φ = 517990809600.

The previous prime is 1102201212019. The next prime is 1102201212029. The reversal of 1102201212021 is 1202121022011.

It is not a de Polignac number, because 1102201212021 - 2¹ = 1102201212019 is a prime.

It is a super-2 number, since 2×1102201212021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102201212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10300846 + ... + 10407296.

It is an arithmetic number, because the mean of its divisors is an integer number (15773631552).

Almost surely, 2^{1102201212021} is an apocalyptic number.

It is an amenable number.

1102201212021 is a deficient number, since it is larger than the sum of its proper divisors (916823626635).

1102201212021 is a wasteful number, since it uses less digits than its factorization.

1102201212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106611.

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

Adding to 1102201212021 its reverse (1202121022011), we get a palindrome (2304322234032).

The spelling of 1102201212021 in words is "one trillion, one hundred two billion, two hundred one million, two hundred twelve thousand, twenty-one".