1011232221022 has 4 divisors (see below), whose sum is σ = 1516848331536. Its totient is φ = 505616110510.

The previous prime is 1011232221007. The next prime is 1011232221029. The reversal of 1011232221022 is 2201222321101.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011232221029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252808055254 + ... + 252808055257.

It is an arithmetic number, because the mean of its divisors is an integer number (379212082884).

Almost surely, 2^{1011232221022} is an apocalyptic number.

1011232221022 is a deficient number, since it is larger than the sum of its proper divisors (505616110514).

1011232221022 is an equidigital number, since it uses as much as digits as its factorization.

1011232221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505616110513.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1011232221022 its reverse (2201222321101), we get a palindrome (3212454542123).

The spelling of 1011232221022 in words is "one trillion, eleven billion, two hundred thirty-two million, two hundred twenty-one thousand, twenty-two".