1021121102 has 8 divisors (see below), whose sum is σ = 1538256096. Its totient is φ = 508369072.

The previous prime is 1021121063. The next prime is 1021121147. The reversal of 1021121102 is 2011211201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095158 + ... + 1096089.

It is an arithmetic number, because the mean of its divisors is an integer number (192282012).

Almost surely, 2^1021121102 is an apocalyptic number.

1021121102 is a deficient number, since it is larger than the sum of its proper divisors (517134994).

1021121102 is a wasteful number, since it uses less digits than its factorization.

1021121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191482.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1021121102 is about 31954.9855578124. The cubic root of 1021121102 is about 1006.9913741102.

Adding to 1021121102 its reverse (2011211201), we get a palindrome (3032332303).

Subtracting 1021121102 from its reverse (2011211201), we obtain a palindrome (990090099).

It can be divided in two parts, 10211 and 21102, that added together give a palindrome (31313).

The spelling of 1021121102 in words is "one billion, twenty-one million, one hundred twenty-one thousand, one hundred two".