1122090121 has 8 divisors (see below), whose sum is σ = 1171376640. Its totient is φ = 1072845312.

The previous prime is 1122090119. The next prime is 1122090131. The reversal of 1122090121 is 1210902211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122090121 - 2¹ = 1122090119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122090131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52776 + ... + 70918.

It is an arithmetic number, because the mean of its divisors is an integer number (146422080).

Almost surely, 2^1122090121 is an apocalyptic number.

It is an amenable number.

1122090121 is a deficient number, since it is larger than the sum of its proper divisors (49286519).

1122090121 is a wasteful number, since it uses less digits than its factorization.

1122090121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20855.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1122090121 is about 33497.6136612744. The cubic root of 1122090121 is about 1039.1444273212.

Adding to 1122090121 its reverse (1210902211), we get a palindrome (2332992332).

It can be divided in two parts, 1122090 and 121, that added together give a palindrome (1122211).

The spelling of 1122090121 in words is "one billion, one hundred twenty-two million, ninety thousand, one hundred twenty-one".