1122120021002 has 4 divisors (see below), whose sum is σ = 1683180031506. Its totient is φ = 561060010500.

The previous prime is 1122120020993. The next prime is 1122120021031. The reversal of 1122120021002 is 2001200212211.

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

It can be written as a sum of positive squares in only one way, i.e., 580234116361 + 541885904641 = 761731^2 + 736129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280530005249 + ... + 280530005252.

Almost surely, 2^{1122120021002} is an apocalyptic number.

1122120021002 is a deficient number, since it is larger than the sum of its proper divisors (561060010504).

1122120021002 is an equidigital number, since it uses as much as digits as its factorization.

1122120021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561060010503.

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

Adding to 1122120021002 its reverse (2001200212211), we get a palindrome (3123320233213).

The spelling of 1122120021002 in words is "one trillion, one hundred twenty-two billion, one hundred twenty million, twenty-one thousand, two".