102378561122 has 16 divisors (see below), whose sum is σ = 154698128640. Its totient is φ = 50813160528.

The previous prime is 102378561121. The next prime is 102378561127. The reversal of 102378561122 is 221165873201.

It is a super-2 number, since 2×102378561122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102378561121) 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, 159983 + ... + 479949.

It is an arithmetic number, because the mean of its divisors is an integer number (9668633040).

Almost surely, 2^102378561122 is an apocalyptic number.

It is a pronic number, being equal to 319966×319967.

102378561122 is a deficient number, since it is larger than the sum of its proper divisors (52319567518).

102378561122 is a wasteful number, since it uses less digits than its factorization.

102378561122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321145.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 102378561122 in words is "one hundred two billion, three hundred seventy-eight million, five hundred sixty-one thousand, one hundred twenty-two".