1021221101202 has 32 divisors (see below), whose sum is σ = 2046596378112. Its totient is φ = 339715106304.

The previous prime is 1021221101003. The next prime is 1021221101203. The reversal of 1021221101202 is 2021011221201.

It is not an unprimeable number, because it can be changed into a prime (1021221101203) 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, 9624028 + ... + 9729560.

It is an arithmetic number, because the mean of its divisors is an integer number (63956136816).

Almost surely, 2^{1021221101202} is an apocalyptic number.

1021221101202 is an abundant number, since it is smaller than the sum of its proper divisors (1025375276910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021221101202 is a wasteful number, since it uses less digits than its factorization.

1021221101202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108802.

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

Adding to 1021221101202 its reverse (2021011221201), we get a palindrome (3042232322403).

The spelling of 1021221101202 in words is "one trillion, twenty-one billion, two hundred twenty-one million, one hundred one thousand, two hundred two".