121401102 has 16 divisors (see below), whose sum is σ = 246783312. Its totient is φ = 39803520.

The previous prime is 121401101. The next prime is 121401103. The reversal of 121401102 is 201104121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121401101) and next prime (121401103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121401101) 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, 165483 + ... + 166214.

It is an arithmetic number, because the mean of its divisors is an integer number (15423957).

Almost surely, 2^121401102 is an apocalyptic number.

121401102 is an abundant number, since it is smaller than the sum of its proper divisors (125382210).

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

121401102 is a wasteful number, since it uses less digits than its factorization.

121401102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331763.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121401102 is about 11018.2168248769. The cubic root of 121401102 is about 495.1546664933.

Adding to 121401102 its reverse (201104121), we get a palindrome (322505223).

The spelling of 121401102 in words is "one hundred twenty-one million, four hundred one thousand, one hundred two".